Fly-escape for window and door screens



(No Model.)

A. WILLIS- 2 Sheets-Sheet 1.

N 341 FLY ESCAPE FOR WINDOW AND DOOR SCREENS o.

,087. @j Patented `May 4, 1886.

cfs CIS Cyl N. PETERS. Plmla-mhnnmpher. wnshingmn. D. C.

(No Model.) 2 Sheets-Sheet 2.

A. WILLIS.

FLY ESCAPE FOR WINDOW AND DOOR SCREENS. No. 341,087. Patented May 4, 1886..

N. PETERS. Phola-Lilhegmpher, wnshingmnv D. c.

NrTna STATES` PATENT OFFICE.

AMBROSE VILLTS, OF TROY, NEV YORK.

FLY-ESCAPE FOR WINDOW AND DOOR SCREENS.

SPECIFICATION forming part of Letters Patent No. 341,087, dated May 4, 1886.

Application led August 2l, 188,5. Serial No. 174,966. (No model.)

T0 all whom it may concern.-

Be it known that i, AMBRosE WILLIs, of the city of rlroy, county of Rensselaer, State of New York, have invented new and useful Improvementsin Fly-Escapes for Vindow and Door Screens, of which the following isa speciiication.

My invention relates to certain improvements in door and window screens for inducing the escape of iiies from the room wherein the doors or windows containing the screens are placed.

My invention consists (as will be more fully detailed hereinafter in connection with its illustration) in the combination, with the screen properof a door or window, of an apron or curtain that is made of a similar material to the screen, and is arranged on what is the inner 4face of the latter relatively to the room in which the screen is placed, said apron or eurtain being downwardly extended from the top of the screen ata sufficient distance therefrom to allow thc ilies to crawl up between said curtain or apron and screen, either the screen proper or the curtain or apron having con cavities of an upward-tapering form, while the screen and the apron or curtain are connected at the edges of said concavitics to form inclosures thercat, and openings are provided in the screen proper at or near the top of the inclosures for the outward escape of the iiies.

Accompanying this specification, to form a part of it, there are two. plates of drawings containing ten figures illustratingl my invention, with the same designation of parts .by letter-reference used in all o'f them.

Of these illustrations, Figure l shows the top portion of a door or window screen,which is illustrated as having concavities formed therein, the walls of which converge,which taper upwardly, and are provided with escapeopenings at or near the top. Fig. 2 shows the forni of apron or curtain used when the concavities are made in the screen proper, the curtain being shown as separated from the screen in this gure. Fig. 3 shows the screen illustrated at Fig. 1 and the curtain shown at Fig. 2 as connected to Vproduce my invention. Fig. 4shows a section taken on the line x a" of Fig. 3, and Fig. 5 showsa section taken on the line :v2 as of Fig. 3. Fior. G shows the top part of a door or window screen adapted to produce a modi- .tain A.

cation of my invention, and Fig. 7 shows a curtain having the con cavities made in the latter instead of in the screen proper, as they are shown at Fig. 3. Fig. 8 illustrates the screen shown at Fig. G and the curtain appearing at Fig. 7 as connected to produce a modification of my invention. Fig. 9 is a section taken on the line rv zt of Fig. 8, and Fig. 10 is a section taken on theline x" fc* of Fig. 8. The several parts of the apparatus thus illustrated are designated by 1etterreference, and the function of the parts is described as follows: The letter S designates the screen proper, which is of the usual form, made in 011e piece from wire-cloth, and at its edges secured in the frame F. rlhe letter A designates the curtain or apron, which is also secured on all of lits edges but the lower one in the frame F. rlhis apron and screen are arranged to be in vcontact with each other, excepting where either is bent outwardly and laterally to form coneavities C', which may be made either in the screen proper or the cur- Thesc .concavities. when the screen proper and curtain are connected so as to be in contact at the edges of the concavities, produce the inclosures E. These inclosures E are open at the bottom, and are between the screen proper and apron, above the bottom of the latter, with the apron far enough away from the screen proper thereat for the liies 'to crawl upwardly within the passageway ct between the two to enter the inclosures E. The sides of the inclosures taper inwardly and upwardly to a point, P, and immediately opposite the latter there are formed in the screen proper egress-passages O, which open outwardly. At the side of the inclosnres E the screen proper and the curtain part are in contact. The operation of the parts thus made is as follows: Flicsvthat are inside of the room IOO has been patented, in which a series of strips were transversely arranged in a frame with Atheir lower edges downwardly overlapping on the apartment-face of the screen and containing where thus overlapping V-for1n pieces of wire that were placed between the overlapping and underlapping edges of the strips to produce escape-passages for the flies. The transverse division of the screen into several parts increases the tendency of the screen to sag when applied to windows that rise and fall to open and close, and to bag out and stretch when applied to doors that close with some force, and hence much better conditions of use are had by my improvement, where the screen proper is in one piece with the apron in contact with it except where the concavities are bent to produce the inclosures for the escape of ies.

I am aware that a door-screen has been patented which was made with an opening cut across the Whole width of the screen at the top, with an apron or curtain hung down from the top of the frame at a sufficient distance from the screen proper to leave a space for the passage of the flies np to the top opening. This older construction left the screen proper unconnected at the top, and while llies will enter a large opening leading into an inclosure, they will not enter a small one; hence with a large opening at the top, such as eX- tended across the face of the screen, the invitation to come in would be about as strong as the suggestion to go ont.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

The combination of the screen S, made in one piece, having the egress-openings O produced therein, and being attached at its sides, top, and bottom to a supporting-frame, the apron A, made of screen material, and being also attached at its sides and top to said frame, the inclosures E, having the entrance-openings a, and produced between the said screen proper and apron by bending away from their contact the said screen or apron, said inclosures being arranged with reference to the I egress-openings O, substantially as and for the AMBROSE Vl'LLlS.

XVitnesses:

W. E. HAGAN, CHARLES S. BRINTNALL. 

